131529 GREATER BLADDERWORT Utricularia vulgaris (Lentibulariaceae) Aquatic. Freshwater plant of still, mainly calcareous waters. Small bladders, found along the submerged stems, trap tiny invertebrates. FLOWERS are 12-18mm long and deep yellow; in clusters of 4-10 on emergent stems (Jun-Jul). FRUITS are capsules. LEAVES are finely divided with bristled teeth. STATUS-Locally common only in E England and N Ireland.